Block & Internal Parts
Connecting Rod 719810-23100 for Yanmar 3TNE78 – In Stock Ready to Ship
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Block & Internal Parts 719810-23100 connecting rod For Komatsu

Connecting Rod 719810-23100 for Yanmar 3TNE78 – In Stock Ready to Ship

Connecting Rod 719810-23100 for Yanmar 3TNE78, forged steel construction, replacement for 3TNE78A and Komatsu PC20R-8 / PC27R-8 series

  • Stocked in Guangzhou warehouse, 1-piece MOQ for emergency replacement β€” no waiting on full sets when one rod fails
  • Submit part number, machine model, or nameplate photo for rapid fitment confirmation, response within hours
  • Ships same or next working day via DHL / FedEx / UPS with arrival timing quoted upfront

Dispatch timing confirmed at quotation stage for your specific location.

Key Highlights

  • Fits CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, Sany, XCMG & more
  • Sourced from ISO-certified factories with strict QC inspection
  • MOQ = 1 piece Β· In-stock items ship in 2-5 working days
  • 3-12 month warranty Β· 24-hour quotation guarantee
Ships from Guangzhou
120+ countries served
MOQ: 1 piece
Quote in 24 hours

Single-piece MOQ β€” This connecting rod for Yanmar 3TNE78 ships from Guangzhou stock with no minimum order barrier, so a downed machine does not wait for a full engine set.

Technical Specifications

Parameter Value
Part Number 719810-23100
Product Type Connecting Rod
Cross-Reference 71981023100, YM719810-23100, YM71981023100 (reference only)
Machine Fitment Yanmar 3TNE78, Yanmar 3TNE78A, Komatsu PC20R-8 (S/N F30001-Up, F30791-Up), Komatsu PC27R-8 (S/N F30001-Up, F31103-Up, F32154-Up), Komatsu PC27R-8 DELUXE (S/N F30671-Up, F31103-Up), Komatsu PC27MR-2 (S/N F00103-Up), Komatsu PC27MR-3 (S/N 04634-UP), Komatsu 3D75N-1YC, Komatsu 3D78AE-3A/B/C/D, Komatsu 3D78N-1A/C/E, Komatsu 3D80-1, Komatsu 3D82AE-3C/D/E/F/G/H/HB/HC, Komatsu 3D82AE-5M-BA/5P-CB, Komatsu 3D82AE-6/6BM-DA, Komatsu 3D82E-3A/B
Material Forged steel (SAE 1045)
Surface Treatment Phosphate coating with oil sealant
Rod Cap Alignment Dowel-pin location
Condition New Aftermarket
Warranty 6-month coverage against manufacturing defects
Standards ISO 9001, ISO 8533, JIS B 1001

Application Suitability

Failure Symptom Replacement Urgency
Knocking noise from crankcase under load Immediate β€” risk of crankshaft scoring if operation continues
Visible bending or twist after hydrolock event Urgent β€” engine cannot restart until rod is replaced
Bearing shell spun on big-end journal Same-day teardown required to prevent block damage
Metallic debris in oil filter during routine service High β€” indicates advanced wear, schedule replacement at next available window
Low compression on one cylinder with no valve fault Moderate β€” confirm rod straightness before reassembly

What Happens Between Part Confirmation and Machine Restart

Connecting Rod 719810-23100 in stock means the clock stops on extended downtime once the order is placed.

A workshop supervisor sends a photo of a faded nameplate at midday. By afternoon, the part number is confirmed against the Yanmar 3TNE78 engine family and the rod is allocated from Guangzhou warehouse. The machine has already been sitting idle while other suppliers asked for bulk commitments or multi-week lead times. Every hour of non-operation on a compact excavator at an urban job site compounds into missed deadlines and idle crew costs [NEED_CITE: equipment downtime cost modeling for compact excavators in urban construction].

How Fast the Part Moves From Shelf to Site

Availability is only useful if it translates into a confirmed dispatch window. This Connecting Rod 719810-23100 sits on a stocked shelf in Guangzhou, not in a distant production queue. When a single rod is needed for an emergency teardown, the one-piece minimum order means the purchase goes through without waiting to fill a carton. Express, air, and sea freight options are quoted at the same time as the part confirmation, so the estimated arrival date is known before the purchase order is issued.

Reading the Nameplate When the Paint Has Won

Worn or overpainted nameplates are a routine obstacle on machines that have been in service for years. Our technical team identifies the correct connecting rod from a machine model, a serial range, or a photograph of the engine block casting marks. For Komatsu PC27R-8 units across serial ranges F30001-Up through F32154-Up, the Yanmar 3TNE78 and 3TNE78A engine variants share this rod but differ in adjacent fasteners and gasket profiles. Sending a clear photo eliminates guesswork and avoids the cycle of ordering, receiving, and returning the wrong part [NEED_CITE: field identification methods for engine components on aging equipment].

Connecting Rod 719810-23100 in stock for Yanmar 3TNE78 fast shipping replacement

Material and Tolerance Choices That Matter at Teardown

Forged SAE 1045 steel provides the fatigue strength needed for the cyclic loading in a three-cylinder diesel block. The phosphate coating with oil sealant protects the rod during storage and initial handling, reducing the chance of surface corrosion before assembly. Dowel-pin cap alignment ensures the big-end bore stays concentric after repeated disassembly, which matters when the same rod may be inspected across multiple overhaul cycles. These characteristics determine whether the rod survives its first thousand hours without developing cap walk or bore distortion.

Connecting rod big-end bore and dowel-pin alignment detail

The Real Cost of Getting the Wrong Rod Delivered

A mismatched connecting rod does not announce itself immediately. It may fit the crankshaft journal but sit at a slight angular offset, loading one side of the bearing shell unevenly. Within a few hundred hours, that asymmetric load produces copper transfer onto the journal and eventually spins the shell. The machine goes back down, the engine comes out a second time, and the crankshaft may now need regrinding. The initial time saved by accepting an unverified part number turns into a far larger loss in labor and secondary damage [NEED_CITE: connecting rod misalignment effects on bearing wear patterns in small-bore diesel engines].

Why Buyers Route Emergency Orders Here

Our Guangzhou warehouse holds this connecting rod ready for same-day allocation. One piece ships without minimum quantity negotiation, so a single-machine breakdown does not require a fleet-scale purchase. Part identification works from a part number, a machine model, or a photograph of the engine plate β€” whichever is legible on site. Cross-reference verification covers superseded numbers like YM719810-23100 and YM71981023100, catching mismatches before the package leaves. A six-month warranty against manufacturing defects backs every rod that goes out the door.

Documentation & Verification

  • Commercial invoice and packing list with part number 719810-23100 and serial traceability
  • Compatibility sheet listing Yanmar 3TNE78 and Komatsu PC20R-8 fitment ranges (reference only)
  • Dimensional inspection record covering big-end bore and pin bore measurements
  • Warranty certificate specifying 6-month coverage terms for manufacturing defects
  • Dispatch photographs showing protective packaging and labeling before handover
  • HS code and customs documentation support for cross-border clearance

Stock, Shipping & Arrival

  • Current stock status confirmed at quote stage so downtime scheduling can begin immediately
  • Express courier dispatch available for single-rod emergency shipments with multi-day transit windows
  • Air freight consolidation for workshops ordering multiple engine components together
  • Protective phosphate coating preserved with sealed inner wrapping suitable for courier handling
  • Shipment tracking provided from warehouse handover through to delivery confirmation

Inquiry Process

Send the part number, the machine model, or a photograph of the engine nameplate. Our team confirms whether Connecting Rod 719810-23100 in stock matches your specific serial range and returns freight options with estimated arrival timing on the same response.

Frequently Asked Questions

Q: Is this connecting rod in stock and when can it ship? A: Connecting Rod 719810-23100 is stocked in our Guangzhou warehouse for immediate allocation. Once the order is confirmed and payment terms are agreed, the rod is prepared for dispatch within the same working day. Express, air, and sea freight options are quoted together so you can choose based on urgency and cost.

Q: What is the minimum order quantity β€” can I buy just one? A: Yes. The minimum order quantity is one piece. Emergency breakdowns rarely need a full engine set of rods, and we do not require bulk commitments. A single connecting rod ships with the same documentation and warranty coverage as a larger order.

Q: How do I confirm fitment if the nameplate is unreadable? A: Send a photograph of the engine block, the old connecting rod, or any visible casting marks. Our technical team cross-references the image against known serial ranges for Yanmar 3TNE78 and Komatsu PC20R-8 variants. Confirmation typically arrives within hours during business operations.

Q: What happens if the part I receive does not match my engine? A: If the connecting rod does not match the confirmed fitment details, contact us immediately before installation. We arrange resolution under our warranty terms. Providing clear machine identification at the inquiry stage significantly reduces the chance of any mismatch.

Compatible Brands & Models

CAT
Komatsu
Hitachi
Volvo
Hyundai
Doosan
Kobelco
Sany
XCMG
Liebherr
JCB
Case

Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.

Shipping Information

  • In-Stock Items: Dispatched within 2-5 working days from Guangzhou warehouse
  • Shipping Methods: DHL, FedEx, UPS, sea freight, air freight -- flexible options for all destinations
  • Coverage: Ships to 120+ countries worldwide with real-time tracking
  • MOQ: 1 piece -- no minimum order requirement

Warranty & Quality

  • Warranty: 3 to 12 months depending on part type
  • QC: Strict quality inspection at ISO-certified partner factories
  • Samples: First-time buyers can request samples before bulk orders
  • Support: 24/7 post-delivery technical assistance via WhatsApp & email
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